IRKD71/12A

Series:	--
Packaging:	Bulk
Part Status:	Obsolete
Diode Configuration:	1 Pair Series Connection
Diode Type:	Standard
Voltage - DC Reverse (Vr) (Max):	1200V
Current - Average Rectified (Io) (per Diode):	80A
Speed:	Standard Recovery >500ns, > 200mA (Io)
Current - Reverse Leakage @ Vr:	10mA @ 1200V
Mounting Type:	Chassis Mount
Package / Case:	ADD-A-PAK (3)
Supplier Device Package:	ADD-A-PAK®

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IRKD71/12A Diodes - Rectifiers - Arrays Application Field and Working Principle

The IRKD71/12A from Infineon is an integrated fast reverse-parallel-connected Schottky diode array which is a diode array module made up of 12 Schottky diodes. The module is offered in an industry standard, SO-8 performance package, replacing individual diode packages used in many full-wave power supplies and DC/DC converters.

Applications

The main applications of the IRKD71/12A are full-wave ac-to-dc bridge rectifiers and isolated buck and boost converters. This module has a low forward voltage drop, fast switching, low profile, and ability to withstand high power dissipation. It is used in many high-current applications including automotive and industrial. These applications include power supplies, DC/DC converters, AC/DC bridge rectifiers, and circuitry protection.

Working Principle

The IRKD71/12A diode array module works by switching a current between two individual diodes so that when the current passes through one diode the other is off and vice versa. Each diode is connected in reverse parallel. This enables the diodes to always have the same conduction angle, meaning that it is always in the on state for some portion of each cycle of the input waveform.The module operates at very high speeds and can handle high switching frequencies. The resulting waveform has low complexity as the input high frequency waveform is filtered quickly, yielding a low-ripple or smooth waveform.The module is highly efficient, with very little heat dissipation and minimum power loss during switching. The module has a low forward voltage drop and enables inductive loads to be driven with virtually no losses.

Conclusion

The IRKD71/12A diode array module from Infineon is a versatile device which can be used in many full wave and high frequency applications. It offers fast switching, low forward voltage drop, and low power dissipation. It can be used as a bridge rectifier as well as in isolated buck and boost converters. The module meets international standards, is easy to install, and has very low failure rates, making it a reliable and cost effective choice for many applications.

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